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COMP Cams SK51-226-4 Xtreme Energy Hydraulic Flat Cam Kit Pontiac - for 265-455

(Pontiac GTO 1964-73, Firebird 1967-81, Grand Prix 1962-80, Grand Am 1973-75, 1978-80, Bonneville 1959-80, LeMans 1963-81, Catalina 1959-80 + 18 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

SK51-226-4
6 reviews
Sale Price

$458.95

Estimated ship date Saturday, November 21

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Product Details

The COMP Cams SK51-226-4 Xtreme Energy camshaft kit delivers a performance upgrade for Pontiac 265-455 cubic inch V8 engines. This complete SK-Kit (Small Kit) provides all the essential components needed for a successful camshaft installation in one convenient package.

Camshaft Specifications:

  • Valve lift: 0.450"/0.450" (intake/exhaust)
  • Duration at 0.050": 218°/224° (intake/exhaust)
  • Advertised duration: 268°/280° (intake/exhaust)
  • Lobe separation angle: 110°
  • Hydraulic flat tappet design for reliable operation
  • RPM range: 1500-5800

Complete Kit Includes:

  • Xtreme Energy camshaft with advanced lobe profiles
  • High-quality hydraulic flat tappet lifters (16)
  • Double-roller timing chain set for precise valve timing
  • Assembly lubricant for proper break-in
  • COMP Cams decals
  • Detailed installation instructions

This Xtreme Energy profile is designed for street/strip applications seeking improved throttle response, increased mid-range torque, and enhanced top-end power. The hydraulic flat tappet design maintains smooth idle characteristics while delivering noticeable performance gains. Ideal for street machines with headers, intake upgrades, and compression ratios between 9.0:1 and 10.5:1. Requires valve spring upgrade for optimal performance.

Products specifications

Fits

Pontiac GTO 1964-73, Firebird 1967-81, Grand Prix 1962-80, Grand Am 1973-75, 1978-80, Bonneville 1959-80, LeMans 1963-81, Catalina 1959-80, Tempest 1961-70, Ventura 1960-61, 1972-75, 1977, Grandville 1971-75 + 15 more models

Advertised Intake Duration

294

Cam Type

Hydraulic Flat Tappet

Kit Type

SK-Kit - Small Kit

Intake Valve Lift

0.519

Exhaust Valve Lift

0.524

Basic Operating RPM Range

2,800-6500

Intake Duration at .050 Inch Lift

250

Camshaft Material

Cast Iron

AMAZON ASIN

B001R9FMR4

Engine Family

Pontiac 265-455 C.I. 8 Cylinder (1955-1981)

Usage

Street/Performance

Assembly Lubricant Included

Yes

Camshaft Gear Attachment

1-Bolt

LOBE SEPARATION

110

Valve Springs Required

Yes

Lifter Type

Hydraulic Flat Tappet

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for On-Road Vehicles?

No

C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?

Yes, but must be a race/competition only vehicle.

C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

Gaskets Included

No

Locks Included

No

Lifters Included

Yes

Retainers Included

No

Timing Chain and Gears Included

Yes

Advertised Exhaust Duration

306

Valve Stem Seals Included

No

Exhaust Duration at .050 inch Lift

256

Pushrods Included

No

Camshaft Series

Xtreme Energy

What a great company. 1st time buyer and very happy with Price, service, and shipping. Answered emails personally vs. a computer response. A++++ Will buy from in the future.

Awsome service and prices,Thanks alot

It was quick and easy to find what I needed.

lowest price I could find ANYWHERE. Website needs some work (login screen appears to be asking you to login again after you enter account info).

Very good company! Shipped out product very fast!!! I can say i will use them again

it's a great company had the lowest price anywhere that i could find even online. great customer service that will even help you track your order all the way to your house. thanks autoplicity for helping me out and for being there with the lowest price when i needed you.

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